某工程由于设计变更，工程师签发了停工一个月的暂停工令，承包商可索赔的材料费是()。

An internet is a combination of networks connected by (1). When a datagram goes from a source to a？ (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a？ (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet？ The decision is based on optimization: Which of the available (5) is the optimum pathway？

空白（4）处应选择（）

A. destination

B. resource

C. packet

D. source

An internet is a combination of networks connected by (71) .When a datagram goes from a source to a (72) ，it will probably pass many (73) until it reaches the router attached to the destination network．A router receives a (74) from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet？ The decision is based on optimization： Which of the available (75) is the optimum pathway？

A．modems

B．routers

C．switches

D．computers

An internet is a combination of networks connected by (71) .When a datagram goes from a source to a (72) ，it will probably pass many (73) until it reaches the router attached to the destination network．A router receives a (74) from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet？ The decision is based on optimization： Which of the available (75) is the optimum pathway？

A．modems

B．routers

C．switches

D．computers

An internet is a combination of networks connected by (1). When a datagram goes from a source to a？ (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a？ (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet？ The decision is based on optimization: Which of the available (5) is the optimum pathway？

空白（2）处应选择（）

A. user

B. host

C. city

D. destination

An internet is a combination of networks connected by (1). When a datagram goes from a source to a？ (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a？ (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet？ The decision is based on optimization: Which of the available (5) is the optimum pathway？

空白（5）处应选择（）

A. pathways

B. routers

C. diagrams

D. calls

An internet is a combination of networks connected by (1). When a datagram goes from a source to a？ (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a？ (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet？ The decision is based on optimization: Which of the available (5) is the optimum pathway？

空白（3）处应选择（）

A. destinations

B. routers

C. packets

D. computers

A. Forward the packet.

B. Fragment the packet.

C. Drop the packet silently.

D. Drop the packet and send an ICMPv6 message.

A. The destination is a host on another subnet, so the router will not forward the packet.

B. The destination is a host on the same subnet, so the router will forward the packet.

C. The destination is a broadcast address, so the router will not forward the packet.

D. The destination is a network address, so the router will forward the packet.

A. When the discovery packet enters the router from the DHCP client.

B. Only when the offer packet enters the router from the DHCP server.

C. When the acknowledge packet enters the router from the DHCP server.

D. Only when the discovery packet leaves the router going to the DHCP server.

source to a （72） , it will probably pass many （73） until it reaches the router attached to the destination network. A router receives a （74） from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet？ The decision is based on optimization: Which of the available （75） is the optimum pathway？

（71）

A. modems

B. routers

C. switches

D. computers

（72）

A. user

B. host

C. city

D. destination

（73）

A. destinations

B. routers

C. packets

D. computers

（74）

A. destination

B. resource

C. packet

D. source

（75）

A. pathways

B. routers

C. diagrams

D. calls